Improvement in fasteners for sashes and doors



J. B. FROST. Fasteners for Sashes and Doors.

No.140,026. ,7 PatentedJune17,l873.

@Witnesses: mvENToR AM PHOTOLITHDGRAPHIC C0 NXI OSBDRNEJS PROCESS.)

same.

UNITED STATES PATENT OFFICE.

JOSIAH B. FROST, OF JACKSON, MICHIGAN.

IMPROVEMENT IN FASTENERS FOR SASHES AND DOORS.

Specification forming part of Letters Patent No. 140,026, dated J une17,1873; application filed April 5, 1873.

, having points projecting from the under side to mark the centers ofthe circles, and a flange for the purpose of strengthening it inposition, and a face-plate inclosing a bolt and spiral spring, all ashereinafter particularly described.

Figure 1 is the under or reverse side of the fastener embodying myinvention. Fig. 2 is the face, end, and a portion of the edge of theFig. 3 is a convenient form of doorfastener.

The fastener is substantially constructed of durable metal in fourparts: A case, A A, and bolt B, which are cast; a spiral spring, made inthe usual manner, to project the bolt; and a face-plate, F F, whichcovers the Whole. 0 G

are the centers of the circles whose circumferences intersect each otherat the points I I. D D is the cord from which the small segment istaken, forming the end of the fastener to conform to the straight edgeof the sash or door. P P are the points projecting from the under orreverse side to mark the position of the centers of the places to bebored in the JOSIAH B. FROST. Witnesses:

MERRITT S. 000K, JESSE W. BLAKESLEE.

